package org.apache.ddlutils.platform.sapdb;

        /*
         * Licensed to the Apache Software Foundation (ASF) under one
         * or more contributor license agreements.  See the NOTICE file
         * distributed with this work for additional information
         * regarding copyright ownership.  The ASF licenses this file
         * to you under the Apache License, Version 2.0 (the
         * "License"); you may not use this file except in compliance
         * with the License.  You may obtain a copy of the License at
         *
         *   http://www.apache.org/licenses/LICENSE-2.0
         *
         * Unless required by applicable law or agreed to in writing,
         * software distributed under the License is distributed on an
         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
         * KIND, either express or implied.  See the License for the
         * specific language governing permissions and limitations
         * under the License.
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import org.apache.ddlutils.Platform;
import org.apache.ddlutils.model.Column;
import org.apache.ddlutils.platform.DatabaseMetaDataWrapper;
import org.apache.ddlutils.platform.JdbcModelReader;

import java.sql.SQLException;
import java.sql.Types;
import java.util.Map;

/**
 * Reads a database model from a SapDb database.
 *
 * @version $Revision: $
 */
public class SapDbModelReader extends JdbcModelReader {
    /**
     * Creates a new model reader for SapDb databases.
     *
     * @param platform The platform that this model reader belongs to
     */
    public SapDbModelReader(Platform platform) {
        super(platform);
        setDefaultCatalogPattern(null);
        setDefaultSchemaPattern(null);
        setDefaultTablePattern("%");
    }

    /**
     * {@inheritDoc}
     */
    protected Column readColumn(DatabaseMetaDataWrapper metaData, Map values) throws SQLException {
        Column column = super.readColumn(metaData, values);

        if (column.getDefaultValue() != null) {
            // SapDb pads the default value with spaces
            column.setDefaultValue(column.getDefaultValue().trim());
            // SapDb uses the default value for the auto-increment specification
            if (column.getDefaultValue().startsWith("DEFAULT SERIAL")) {
                column.setAutoIncrement(true);
                column.setDefaultValue(null);
            }
        }
        if (column.getTypeCode() == Types.DECIMAL) {
            // We also perform back-mapping to BIGINT
            if ((column.getSizeAsInt() == 38) && (column.getScale() == 0)) {
                column.setTypeCode(Types.BIGINT);
            }
        }
        return column;
    }
}
